20034550 has 24 divisors (see below), whose sum is σ = 39227400. Its totient is φ = 7591680.

The previous prime is 20034533. The next prime is 20034557. The reversal of 20034550 is 5543002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9595 + ... + 11494.

It is an arithmetic number, because the mean of its divisors is an integer number (1634475).

Almost surely, 2^20034550 is an apocalyptic number.

20034550 is a deficient number, since it is larger than the sum of its proper divisors (19192850).

20034550 is a wasteful number, since it uses less digits than its factorization.

20034550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21120 (or 21115 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20034550 is about 4475.9970956201. The cubic root of 20034550 is about 271.5979769544.

Adding to 20034550 its reverse (5543002), we get a palindrome (25577552).

The spelling of 20034550 in words is "twenty million, thirty-four thousand, five hundred fifty".